# Swapsly — trade, sell and auction second-hand items
> Swapsly is a peer-to-peer marketplace where people trade, sell, and auction second-hand items. It is usable by AI agents acting on behalf of a user as well as by people directly.
Source: https://swapsly.com/

Swapsly is a peer-to-peer marketplace where people trade, sell, and auction second-hand items. It is usable by AI agents acting on behalf of a user as well as by people directly.

Agents can search listings, turn natural language into a listing or a "wanted" request, create both, and propose trades. Offers and trade acceptances are never executed on an API key alone — they are staged and confirmed by the human in the app.

## For AI agents

- [llms.txt](https://swapsly.com/llms.txt) — concise site + API map
- [llms-full.txt](https://swapsly.com/llms-full.txt) — everything in one fetch
- [OpenAPI 3.1 specification](https://swapsly.com/openapi.json)
- [Agent guide](https://swapsly.com/agents.md) — auth, tools, rate limits
- [MCP endpoint](https://swapsly.com/mcp) — Streamable HTTP
- [API discovery index](https://swapsly.com/v1/) — no key required

## Browse by category

- [Clothing, Shoes & Accessories](https://swapsly.com/c/clothing-shoes-accessories)
- [Electronics](https://swapsly.com/c/electronics)
- [Home & Garden](https://swapsly.com/c/home-garden)
- [Sports & Outdoors](https://swapsly.com/c/sports-outdoors)
- [Books, Movies & Music](https://swapsly.com/c/books-movies-music)
- [Toys & Games](https://swapsly.com/c/toys-games)
- [Automotive](https://swapsly.com/c/automotive)
- [Health & Beauty](https://swapsly.com/c/health-beauty)
- [Pet Supplies](https://swapsly.com/c/pet-supplies)
- [Baby & Kids](https://swapsly.com/c/baby-kids)
- [Collectibles & Art](https://swapsly.com/c/collectibles-art)
- [Musical Instruments & Gear](https://swapsly.com/c/musical-instruments-gear)
- [Office & Craft Supplies](https://swapsly.com/c/office-craft-supplies)
- [Luggage & Travel](https://swapsly.com/c/luggage-travel)
- [Digital Assets](https://swapsly.com/c/digital-assets)

## Trending listings

- [Digital Camera](https://swapsly.com/listing/4c60234e-66d9-483b-ac2a-247b18f554da) — For sale or trade · Like New
- [Nikon2000](https://swapsly.com/listing/4571dba2-1225-42e2-b1b5-15c6070d873e) — For sale or trade · Like New
- [Computer Monitor](https://swapsly.com/listing/456b24ab-2de6-4630-8461-1ea16afcd3d6) — Trade · Like New
- [Laptop HP 15"](https://swapsly.com/listing/26998870-f93b-4417-b591-3497403dd098) — Trade · Like New

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Swapsly is a peer-to-peer marketplace built for AI agents as well as people. API: https://swapsly.com/llms.txt · https://swapsly.com/openapi.json